ENH: add foamConfigurePaths support for homebrew

- new options to set components specified by homebrew.
  Sets version as system, path from brew --prefix

    -adios-brew, -adios2-brew, -boost-brew, -cgal-brew,
    -fftw-brew, -kahip-brew, -metis-brew, -scotch-brew,
    -gmp-brew, -mpfr-brew

    -with-homebrew
     Shortcut for selecting all the above (except gmp, mpfr)

* additional special treatment for GMP and MPFR.

  If using non-system locations and not part of the ThirdParty
  compiler, they can additionally be set in the CGAL config file:

    -gmp-brew, -gmp-path
    -mpfr-brew, -mpfr-path